Senior Full Stack Engineer

Senior Fullstack Engineer

We're hiring a Senior Fullstack Engineer who wants to build consumer products at meaningful scale with real ownership.

This is not a ticket-taking role. You'll work across mobile apps, backend systems, internal tools, and new product lines. You'll help identify problems, shape solutions, and ship iteratively in a space shaped by policy changes, evolving technology, and real-world constraints.

The technology landscape is evolving quickly, including the growing role of AI in how products are built and how users interact with technology. We don't adopt trends blindly, but we do expect engineers to stay curious, experiment thoughtfully, and continuously evolve their craft as the world changes.

We are not meeting-heavy. Engineers have meaningful heads-down time. Product, Design, and Engineering operate with shared values, curious, empathetic, user-first, which reduces friction and accelerates execution.

Comfort with ambiguity, strong product instincts, and a bias toward action are essential.

• Build and ship features across our mobile apps (Vue + Type Script + Capacitor)

• Develop scalable backend systems (Python, Flask, Postgres, Redis, AWS)

• Contribute to architecture and technical direction

• Partner closely with Product and Design to scope and execute solutions

• Break ambiguous problems into iterative, shippable components

• Balance speed with long-term maintainability

• Participate in on-call rotation

• Contribute through design reviews, code reviews, and mentorship

You will build systems used daily by millions of Americans to access food, healthcare, and financial stability.

Experience

• 5+ years building and maintaining complex full-stack systems

• Experience in startup or high-ambiguity environments

• Strong system design and product engineering fundamentals

• Fluency in Python and JavaScript (or willingness to ramp quickly)

• Clear written and verbal communication skills

Mindset

• Ownership:
  You take responsibility for outcomes

• Product Sense:
  You focus on solving the right problems

• Grit:
  You persist through ambiguity and setbacks

• Curiosity:
  You think from first principles

• Urgency & Accountability:
  You ask "why not now?"

• Low Ego:
  You step in where needed

• Strong Judgment:
  You prioritize effectively

• Iterative Mindset:
  You ship, learn, and improve

Nice to have:

• Experience building consumer-scale applications

• Familiarity with safety net programs (SNAP, WIC, TANF, SSI, SSDI, Medicaid, Section
  8)

• $170,000 – $240,000 salary + meaningful equity (Location-independent compensation)

• 20 Days PTO

• 4% 401K match

• $10k lifetime Carrot Fertility benefit

• Excellent Medical, Dental, and Vision coverage

• Remote-first culture (NYC HQ)

• Monthly co-working stipend outside NYC

We benchmark compensation around the 75th percentile and want your equity stake to matter long-term.

Technology is not a support function at Propel - it is the company.

We believe great tech companies:

• Solve user problems first

• Build for scale and iteration

• Invest in quality and infrastructure

• Stay curious about new technologies while exercising strong judgment

We operate lean and transparently. You'll understand our revenue drivers and big bets. Millions of users trust us and that responsibility is earned through consistently strong judgment.

We've backed our mission with action:

• Seeded emergency funds during government shutdowns

• Committed 1% of company equity into a user trust

• Partnered carefully when sun setting products to protect users

We're building in the complex intersection of people, policy, and government systems. That work requires strong partnerships and comes with unique challenges.

• We operate lean, and priorities can shift as policy, partners, or user needs evolve. Our environment isn't highly structured with rigid swimlanes or long, predictable planning cycles.

• Engineers move across product surfaces and problem spaces. This isn't a narrowly scoped role focused on a single technical domain.

• We're building in an era where AI is reshaping team boundaries. Engineers here are comfortable contributing to product and design conversations, not just writing code.

• We ship…